Improvement in well-packings



UNITED STATES PATENT OEEIGE.

J. J. PARKER, OF MARIETTA, OHIO.

IMPROVEMENT IN WELL-PACKINGS.

Specification formingA part of Letters Patent N0, 58,469, dated October 2, 1866.

To all 'whom it may concern Be it known that I, J. J. PARKER, of Mari-- etta, county of Washington, in the State of Ohio, have invented a new and useful Spirally- Ooiled VVell-Packing; and I do hereby declare that the following is a full, clear, and exact section.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

This invention consists in securing to the 'exterior of the pump-tube in a deep well a coil of eXible pipe, which is to be filled with air or water, as occasion may require, and thus made to close entirely the space between the pump and well-tubing.

A represents the flexible, pipe, consisting of gum, leather, or other suitable material wrapped spirally around a cylindrical metallic case, B, (shown in transverse section at Fig. 3,) thirty or forty inches in length, and of a diameter sufcient to enable it to be slipped easily over the joints of the pump-tube O. The iiexible pipe is secured to the said lnetallic case by bending the ends of the case over the upper and lower rounds of the tubing, as shown at a, Fig. 1, by rivets or by ferrules.

The metallic case is not closed longitudinally, but left open, so as to be elastic and close tightly to the pump-tubing when the flexible pipe is lled with air or water, but spring open again when relieved of the pressure. It is lined with leather or other suitable material, b, to form a water-tight packing between it and the pump-tube. To the upper end of the iexible pipe a connection is fastened for the attachment of a supply-pipe, E, in which is arranged a waste-valve, F, and to the lower end of the flexible pipe a similar connection may be fastened for the attachment of a second coil of packing.

, The operation is as follows: The case B, with the tubing A attached, as above described, is slipped over the upper end of the pump-tube O, letdown to any desired place, and held there by means of a cordl attached in any convenient manner. Air or water is then introduced through the supply-pipe E, so as to produce any required pressure; and the iiexible tubing A is thereby expanded until it fills perfectly the space between the pump-tubing and the walls of the well. To relieve the pressure, the supply-pipe E is raised, which opens the valve Fin its upward motion, through which the air or water rushes, allowing the pipe to collapse, when the apparatus may be moved as desired.4

.In this way the hydraulic pressure is so dis.Y tributed that any amount of it may be brought to bear without danger ot bursting the packmg.

What I claim as new, and desire to secure by Letters Patent, `is

The tube A, in combination with the expan'- sible metal case B and lining C, all substantially in the manner and for the purpose described.

This specification signed and witnessed this 23d day of February, A. D. i866.

J. J. PARKER. Witnesses:

A. BLooDGooD, GEO. PARKER. 

